Version 1.0.0

Initial version.

include/zh_dht.h

@@ -0,0 +1,69 @@
+/**
+ * @file
+ * Header file for the zh_dht component.
+ *
+ */
+
+#pragma once
+
+#include "stdint.h"
+#include "stdio.h"
+#include "esp_err.h"
+#include "esp_log.h"
+#include "driver/gpio.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+	/**
+	 * @brief Enumeration of supported sensor types.
+	 *
+	 */
+	typedef enum
+	{
+		ZH_DHT11, ///< Sensor type DHT11.
+		ZH_DHT22  ///< Sensor type DHT22 or AM2302.
+	} zh_dht_sensor_type_t;
+
+	/**
+	 * @brief Unique handle of the sensor.
+	 *
+	 */
+	typedef struct
+	{
+		uint8_t sensor_pin;				  ///< Sensor GPIO connection. @note
+		zh_dht_sensor_type_t sensor_type; ///< Sensor type. @note
+	} zh_dht_handle_t;
+
+	/**
+	 * @brief Initialize DHT sensor.
+	 *
+	 * @param[in] sensor_type Sensor type.
+	 * @param[in] sensor_pin Sensor connection gpio.
+	 *
+	 * @return Handle of the sensor
+	 */
+	zh_dht_handle_t zh_dht_init(const zh_dht_sensor_type_t sensor_type, const uint8_t sensor_pin);
+
+	/**
+	 * @brief Read DHT sensor.
+	 *
+	 * @param[in] dht_handle Pointer for handle of the sensor.
+	 * @param[out] humidity Pointer for DHT sensor reading data of humidity.
+	 * @param[out] temperature Pointer for DHT sensor reading data of temperature.
+	 *
+	 * @return
+	 *              - ESP_OK if read was success
+	 *              - ESP_ERR_INVALID_ARG if parameter error
+	 *              - ESP_ERR_INVALID_RESPONSE if the bus is busy
+	 *              - ESP_ERR_TIMEOUT if operation timeout
+	 *              - ESP_ERR_INVALID_CRC if check CRC is fail
+	 */
+	esp_err_t zh_dht_read(const zh_dht_handle_t *dht_handle, float *humidity, float *temperature);
+
+#ifdef __cplusplus
+}
+#endif